The correct answer is: a) Gupta Empire.
The Kushana Empire was a major power in the Indian subcontinent from the 1st to the 4th centuries CE. It was founded by Kujula Kadphises, who conquered much of the northwestern Indian subcontinent and parts of Central Asia. The Kushana Empire reached its peak under Kanishka the Great, who ruled from around 127 to 150 CE. Kanishka was a great patron of Buddhism, and he convened the Fourth Buddhist Council in Kashmir.
The Kushana Empire began to decline in the 3rd century CE. This was due to a number of factors, including internal strife, invasions from the Huns, and the rise of other empires in the region. The Kushana Empire finally collapsed in the 4th century CE.
The decline of the Kushana Empire paved the way for the rise of the Gupta Empire. The Gupta Empire was founded by Chandragupta I in the 4th century CE. It reached its peak under the rule of his grandson, Samudragupta, who ruled from around 335 to 375 CE. Samudragupta was a great conqueror, and he extended the Gupta Empire to its greatest extent.
The Gupta Empire was a golden age for India. It was a time of great economic prosperity, cultural achievement, and religious tolerance. The Gupta Empire was also a time of great scientific and technological advancement.
The Gupta Empire began to decline in the 6th century CE. This was due to a number of factors, including internal strife, invasions from the Huns, and the rise of other empires in the region. The Gupta Empire finally collapsed in the 6th century CE.
The other options are incorrect because they are not empires that rose after the decline of the Kushana Empire. The Maurya Empire was an empire that ruled over much of the Indian subcontinent from the 4th to the 2nd centuries BCE. The Satavahana Empire was an empire that ruled over much of the Deccan Plateau in India from the 2nd century BCE to the 3rd century CE. The Chalukya Empire was an empire that ruled over much of southern India from the 6th to the 12th centuries CE.